Le Rœulx Hainaut Belgium
The impressive Strépy-Thieu boat lift (L'ascenseur funiculaire de Strépy-Thieu) on the Canal du Centre.With a height difference of 73,15 metres the boat lift was the tallest in the world when it was opened. The design uses two independent counterweighted caissons which travel vertically between the upstream and downstream sections. Archimedes' Principle means that the caissons weigh the same whether a they contain just water or water and a ship. bridge, infrastructure, concrete, transport, civil engineering, structure, inland, waterways,strepy,